Saving for the next property and projecting an investment timeline

[Andy Paul]

Hi Everyone, 

I am planning to buy my first home in the next 1-2 years that I plan to keep and rent out as I buy my next home 2-3 years after that. Once I have purchased two homes, one where I live and the other that I am renting, I want to continue to save to invest in more real estate. I am not looking to grow a massive real estate portfolio which is why I am comfortable saving with my full time job and using this cash to purchase more real estate. 

My question is, are there any good spreadsheets or frameworks I can use to map out how many SFH I could buy over the next 10-15 years with just the money I am saving alone, and on top of that a way to punch in the costs of SFH in different cities/neighborhoods to see if it might be more advantageous to purchase out of state?

Thanks.